diff --git a/compiler2/makefile.c b/compiler2/makefile.c
index 691d86ebd00130ba22fce835e6b68b73414555e6..40f5b6894352ecdd33231408bb2c8cb56d555cc9 100644
--- a/compiler2/makefile.c
+++ b/compiler2/makefile.c
@@ -3239,7 +3239,7 @@ static void print_makefile(struct makefile_struct *makefile)
             if (act_ext_elem->str && hasExternalLibrary(act_ext_elem->str, makefile->project_name)) {
               fputs(" \\\n", fp);
               fprintf(fp, "\tlib%s.a", act_ext_elem->str);
-              ERROR("linking static 3d party or sytem library 'lib%s.a' to "
+              ERROR("linking static 3d party or system library 'lib%s.a' to "
                       "project library 'lib%s.a' is not supported ",
                       act_ext_elem->str, makefile->ets_name);
               exit(EXIT_FAILURE);
diff --git a/regression_test/RAW/Examples/SCCP_typedefs.ttcn b/regression_test/RAW/Examples/SCCP_typedefs.ttcn
index f5db8b27bb5246329e1d7fda396c289767eaaffa..80f3947148597781fbaa076df926a914ca1e27d1 100644
--- a/regression_test/RAW/Examples/SCCP_typedefs.ttcn
+++ b/regression_test/RAW/Examples/SCCP_typedefs.ttcn
@@ -155,7 +155,7 @@ type record  SCCP_field_SignallingPointCode
 //--------------------------------------------------------------------------------
 // Subfield Subsystem Number (Q713 $3.4.2.2)
 //--------------------------------------------------------------------------------
-//type enumerated SCCP_field_SubsytemNumber
+//type enumerated SCCP_field_SubsystemNumber
 //  {
 //   notKnown(0),  sCCPmanagement(1),  reservedForITU(2),  iSUP(3),  oMAP(4),  mAP(5),
 //   hLR(6),       vLR(7),             mSC(8),             eIC(9),   aUC(10),  isdnSS(11),
@@ -165,7 +165,7 @@ type record  SCCP_field_SignallingPointCode
 
 //values declared in SCCPConstants
 
-type integer    SCCP_field_SubsytemNumber
+type integer    SCCP_field_SubsystemNumber
    with { variant "FIELDLENGTH(8)" };
 
 //--------------------------------------------------------------------------------
@@ -302,9 +302,9 @@ type union SCCP_superfield_SignallingPointCode
    Dummy                            absent
   } with { variant "" }
 
-type union SCCP_superfield_SubsytemNumber
+type union SCCP_superfield_SubsystemNumber
   {
-   SCCP_field_SubsytemNumber        present_,
+   SCCP_field_SubsystemNumber        present_,
    Dummy                            absent
   } with { variant "" }
 
@@ -313,7 +313,7 @@ type record SCCP_param_CPartyAddress
    LIN1                                  paramLength,
    SCCP_field_AddressIndicator           addressIndicator,
    SCCP_superfield_SignallingPointCode   signPointCode,
-   SCCP_superfield_SubsytemNumber        subsystemNumber,
+   SCCP_superfield_SubsystemNumber        subsystemNumber,
    SCCP_field_GlobalTitle                globalTitle
   }
    with { variant (signPointCode) "CROSSTAG(
@@ -338,7 +338,7 @@ type record SCCP_param_CPartyAddress_opt
    LIN1                                  paramLength,
    SCCP_field_AddressIndicator           addressIndicator,
    SCCP_superfield_SignallingPointCode   signPointCode,
-   SCCP_superfield_SubsytemNumber        subsystemNumber,
+   SCCP_superfield_SubsystemNumber        subsystemNumber,
    SCCP_field_GlobalTitle                globalTitle
   }
    with { variant (signPointCode) "CROSSTAG(
@@ -595,7 +595,7 @@ type enumerated SCMG_param_FormatId
 //--------------------------------------------------------------------------------
 // Affected SSN (Q713 $5.2.1)
 //--------------------------------------------------------------------------------
-type SCCP_field_SubsytemNumber SCMG_param_AffectedSSN;
+type SCCP_field_SubsystemNumber SCMG_param_AffectedSSN;
 
 //--------------------------------------------------------------------------------
 // Affected Pointcode (Q713 $5.2.2)